Aroma Gardening

•Once per turn, when an Alchemist enters
the battlefield, gain 5 life.
•When your opponent declares an attack,
and your life is lower than your opponents, {t}: exile the top card of your library
until you exile an alchemist creature card.
You may cast that card without paying its
mana cost. Put exiled cards on the bottom
of your library in a random order.